Photo source: Wikimedia Commons, Joseph Karl Stieler
Ludwig van Beethoven (1770-1827) was a German composer best known for his contributions to classical music. Wikipedia says,
"Beethoven remains one of the most admired composers in the history of Western music; his works... span the transition from the classical period to the romantic era in classical music." (Wikipedia: Ludwig van Beethoven, 8.8.21 UTC 01:17)
The rest of this post is some quotes from Beethoven.
Music
"Music is the one incorporeal entrance into the higher world of knowledge which comprehends mankind but which mankind cannot comprehend." (Goodreads.com)
"Music is the electrical soil in which the spirit lives, thinks and invents." (Goodreads.com)
Progress
"Do not merely practice your art, but force your way into its secrets; it deserves that, for only art and science can exalt man to divinity." (Letter to Emilie, 1812)
"There is no loftier mission than to approach the Divinity nearer than other men and to disseminate the divine rays among mankind." (AZQutoes.com)
"Then let us all do what is right, strive with all our might toward the unattainable, develop as fully as we can the gifts God has given us, and never stop learning." (AZQutoes.com)
"In the world of art, as in the whole of creation, freedom and progress are the main objectives." (AZQutoes.com)